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6 Select measuring range
The DIP switches of
“
S2
”
are set to the respective highest measuring range at the
factory, i.e. both DIP switches are down (1 + 2 =
“
OFF
”
).
As small as possible a measuring range must be chosen for maximum accuracy at
maximum resolution of the output signal (se Technical data / accuracy).
Type
S2
MPG-200V
MPG-1000V
MPG-6000V
Measuring range 1
0...200 Pa
(0...0.8 in.wg)
0...1000 Pa
(0...4.0 in.wg)
0...6000 Pa
(0...24.0 in.wg)
Measuring range 2
0...150 Pa
(0...0.6 in.wg)
0...500 Pa
(0...2.0 in.wg)
0...4000 Pa
(0...16.0 in.wg)
Measuring range 3
0...100 Pa
(0...0.4 in.wg)
0...300 Pa
(0...1.2 in.wg)
0...3000 Pa
(0...12.0 in.wg)
Measuring range 4
0...50 Pa
(0...0.2 in.wg)
0...200 Pa
(0...0.8 in.wg)
0...2000 Pa
(0...8.0 in.wg)
7 Zero point calibration
If the sensor sends an output signal > 0 V in the pressureless state, a zero point
calibration is possible with the button
“
S1
”
.
This may be necessary, for example, in case of heavy thermal
fl
uctuations in the sensor
environment or non-vertical mounting.
Procedure
1. Pull off the pressurised hoses.
2. Connect voltage supply (U
S
and GND).
3. Keep button S1 pressed for 3 seconds and then release it.
✓
The LED V1 lights permanently for 3 seconds until zero point calibration is completed
then it
fl
ashes again every 2 seconds.
✓
Measure the output signal, nominal = 0 V. Re-connect the pressurised hoses.
Operating Instructions
MPG-..V
Select measuring range
L-BAL-E248-GB 1931 Index 003
Part.-No. 00163446
7/12